Device for bending and shaping the ends of bars



(No Model.)

' J. H. DOUGHERTY.

DEVICE FOR BENDING AND SHAPING-THE ENDS OE BARS. N0. 281,470. Q Patented July 17,1883.

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- UNITED STATES PATENT QFFIGE.

JAMES H. DOUGHERTY, or WHISTLER, ALABAMA.

DEVICE FOR BENDING AND SHAPING THE ENDS OF BARS.

SPECIFICATION forming part of Letters Patent N0.'281,470, dated July 17, 1883.

Application filed March 1'1, 1883.

To all whom it may concern.-

Be it known that I, JAMEs H. DOUGHERTY, of Whistler, in the county of Mobile and State of Alabama, have invented certain new and useful Improvements in Dies for Forming or Turning Lips on Arch or other Bars; andldo hereby declare the following to be afull, clear, and exact description of the invention, such as will enable others skilled in the art to which it pertains to make and use it, reference being had to the accompanying drawings,which form part of this specification.

My invention relates to an improvement in dies for forming or turning lips on arch or other bars; and it consists in the combination of a suitable die upon which the bar is placed and held in position with a suitable die which descends and bends the end of the bar at right angles, and a die which gives the turned-down end or flange any desired shape, all of which will be more fully described hereinafter.

The object of my invention is to produce a machine by means of which the ends of bars can be bent, and then given any desired shape that may be necessary.

Figures 1 and 2 are side elevations of my invention, taken from opposite sides. Fig. 3 is a plan view of the same, the upper die being removed. Fig. 4 is aperspective of a portion of the top of the frame. Fig. 5 is a perspec tive of the bar which has its end bent.

A represents a suitable frame,which is provided with any suitable number of proj ections, 0, upon its top edge, which pass through the perforations in the bar A, for the purpose of preventing it from moving endwise while being operated upon by either one of the dies. In order to still further hold this bar upon the top of the frame, and to prevent it from having any vertical movement while being operated upon, the latch O is provided, which can be swung around at right angles across the top of the bar and made to engage with the sliding catch D. The latch O is pivoted upon the top of the slotted vertically-moving rod P, which has its lower end attached to the rod Q, which extends through the frame. At the point where this rod passesthrough it there is made a slot in the frame, so that the rod can have a vertical movement for the purpose of depress- (No model.)

ing not only the rod upon which the latch is pivoted, but the slotted catch D itself. Upon each end of this rod Q, which passes through the slotted frame, is formed a bearing, to one of which bearings the lower end of the slotted rod P is attached, while upon the other end is pivoted the weightedfoot-lever E, to which the lower end of the catch is pivoted at a suitable distance beyond the bearing-point of the lever. When this foot-lever is depressed at its outer end, the latch, the rod to which it is con nected, and the catch D are all depressed, for the purpose of forcing the latch down upon the top of the bar, and thus preventing it from rising upward. As soon as the end of the lever E is released, the weight R upon its end causes it to instantly rise upward, and thus raise the latch, the rod upon which it is pivoted, and the catch D. The latch is then free to be swung back, and the bar can be removed.

Upon the top of the frame A is formed the shoulder J, (shown in dotted lines in Fig. 1 and in solid lines in Fig. 4,) beyond which the end of the bar which is to have its end bent and shaped is made to project.

In order to prevent the bar from having a lateral play, there is a guide, I, formed upon each side of it, as shown. While the bar is thus held rigidly in position, the die F is dropped or forced down upon the end of the bar for the purpose ofbending it. I11 order to guide this die toward the end of the bar and to bend it gradually, the inclined sideH is formed upon the frame A, and this inclined side, acting in connection with the inclined side of the die F, forces the die sidewise at the same time that it is descending. This die does nothing more than to bend the end of the bar around at right angles preparatory to having the end given any desired shape. This die F may be dropped any desired number of times, and leaves the end bent at right angles. It being necessary to either round the end of the bar or give it some other shape, adie, G, is brought into play. This die is held loosely between the ends of the operating-lever S and the short pivoted rod T. To the outer end of the lever S will be attached ahydraulic eccentric, steamhammer power, or any other mechanism that may be preferred. As the outer end of the lein position, of a die for bending the end of the ver S is raised upwardthe dieGhas its grooved or otherwise-shaped end forced directly against the end of the bar, while its inclined end V bears against the inclined side H of the frame A and forces the die G toward the end of the bar, so as to give it the desired shape.

It will be seen from the above description that the bar A is first laid upon the frame, the latch then swung across its top, and the latch and catch depressed so as to bear solidly upon its top. The die F is then dropped, so as to bend the end of the bar, and after this die has been raised upward out of the way the die G is forced against the end of the bar, so as to round or give it any other shape that may be preferred.

Having thus described my invention, I claim- 1. The combination, with the frame A, provided with projections upon its top to catch in the bar, and a latch for holding the bar down bar, and a die for shaping the bent end, substantially as shown.

2. The combination, with the frame A, of the latch pivoted upon the upper end of a vertically-moving rod, a vertically-moving catch, D, and alever for operating both thelatch and the catch, substantially as described.

3. The combination, with the frame A, provided with the guides I, inclined edge H, and the shoulders J, of the vertically-moving latch and a mechanism for operating it, a die for bending the end of the bar, and a second die for shaping the end, substantially as set forth. I

In testimony whereof I aflix my signature in presence of two witnesses.

JAMES HENRY DOUGHERTY.

\Vitnesses:

R. G. BRIGGS, O. F. LURGES. 

